Dune 1 (IMAGE) University of Wisconsin-Madison Caption Neighboring dunes in the Otindag dune field in northern China can remain stable in what appear to be opposing states -- bare and active sand or stabilized by plant cover -- due to subtle, hyper-local differences. Credit Image courtesy of Joe Mason Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.